Dr. John Greer MD

Recommended Articles

• What Causes Anemia?

  Anemia is a condition characterized by low levels of red blood cells, or hemoglobin. This results in cells of the body receiving insufficient amounts of oxygen. The tissues and organs and do not function properly resulting in tiredness. It is one of the most common conditions seen in people, and it...

• Which Doctor Should I see if I have Anemia?

  When it comes to health problems, many people become ignorant assuming that every other infection is the common cold, and a little rest and some warm soup will suffice to make problems go away. What they fail to realize is that this ignorance not only leads to unawareness of the disease or disorder...

• Different Blood Types and What They Mean

  The ABO (A, B, AB, or O) blood group system is used to classify different types of antibodies in the plasma and antigens in the red blood cells (RBCs). The ABO blood group and RhD antigen determine the type of blood that is a perfect match for blood transfusions. The four ABO blood groups are: ...

• What Are Lymphocytes?

  A lymphocyte is a type of white blood cell (WBC) that has a significant function in the body's immune system. Lymphocytes function by properly responding to infectious microorganisms and other foreign invaders in the body. Lymphocytes can work alone, but some of them are also capable of...

• Why is Cord Blood Banking Important?

  Cord blood banking is the method of preserving cord blood, which is blood taken from the umbilical cord after the delivery. Cord blood contains hefty amounts of stem cells, which are potential life-saying cells for numerous diseases. Collecting cord blood is a painless procedure, and is considered...

• Leukopenia: Symptoms, Causes, and Treatment

  What is leukopenia?White blood cells (WBCs) are an important part of the immune system, which is why they are called as "fighter cells". There are five different types of white blood cells (WBCs) in our body. They are neutrophils, eosinophils, basophils, monocytes, and lymphocytes. Each type of WBC...